romney's crafted quick comebacks with portman, his mock debate sparring partner. he practiced to keep his cool in what he predicts will be deception by the president. >> i'm not going to fool people to thinking things he doesn't. he wants to fool people thinking things i don't. that ends in the debate. >> so tonight romney believes he has the most to gain as the challenger, the moment he steps on that stage and begins to share the spotlight with the president who the romney campaign believes has the most to lose because he is the incumbent. romney spent much of the day today behind closed doors, a it will with the staff but mostly with family not to leave it in the locker room and break it out big time when the game clock starts. bret? >> bret: carl cameron in spin room. we'll be there in a bit. thank you. obama campaign is calling 2007 video of senator obama then delivering a racially charged speech in virginia is distraction and accusing allies of romney of spreading the tape to the media. the romney come pain denies having -- campaign denies having any part in